LanguageWire is a global leader in language and content services, dedicated to helping brands achieve their full global potential. The role of Full Stack Engineer in the Core Platform Team involves building tools, services, and workflows that enable AI agents to query internal systems, interact with third-party APIs, automate cross-department workflows, and solve real business problems end-to-end.
Requirements
- Strong backend experience: C#,.NET Core /.NET 6+, ASP.NET Web API, microservices
- Solid experience with relational databases (MSSQL and/or PostgreSQL), query design, schema design, performance
- Proven ability to design and build REST APIs and integrate with third-party services and webhooks
- Familiarity with async programming, event-driven architecture, and message queues (e.g., Azure Service Bus, RabbitMQ)
- Some frontend exposure (Vue.js and/or TypeScript), enough to contribute when needed, but the focus here is backend
- Practical understanding of LLM APIs (Anthropic, OpenAI, Azure OpenAI), calling them, managing context, handling responses
- Familiarity with designing or consuming tool/function calling schemas, defining what an agent can invoke and how
- Familiarity with MCP (Model Context Protocol) or similar agent-tool integration patterns (or eagerness to learn)
- Understanding of security and authentication for exposed tool APIs (OAuth 2.0, API keys, rate limiting, input validation)
- Observability mindset: logging, tracing, and monitoring tool invocations and agent interactions
- Agile, collaborative, and opinionated in a constructive way
Benefits
- Flat hierarchies, responsibility and freedom, direct feedback, and room to stand up for your own ideas
- Internal development opportunities, ongoing support from your People Partner, and an inclusive and fun company culture
- International company with over 300 employees. Offices in Copenhagen, Aarhus, Stockholm, Varberg, London, Leuven, Lille, Paris, Munich, Hamburg,, Sophia Antipolis, Atlanta, Finland and Valencia
- Full-time FlexiWire@home option for remote work
- Excellent location in cool and modern offices in the city center, with a great rooftop terrace and a view over the Town Hall Square
- Private health insurance
- Working in an international environment—more than 20 different nationalities
- A dog friendly atmosphere
- Big kitchen with access to organic fruits, nuts and biscuits and coffee
- Social area and game room (foosball table, darts, and board games)
- Bike and car parking
- Weekly social events and parties
- LanguageWire provides access to organic fruits, nuts, biscuits and coffee
- Short working days from 10am to 4pm
